Knife blade



FIG. 1 is a front perspective view of the present invention, showing the knife blade of the new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan front elevational view thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a back elevational view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a knife blade, as shown and described. 